Telephone attachment



May 12, 1925. f 1,537,380

I H. F. STILLSON TELEPHONE ATTACHMENT Original Filed March 25, 1923 INVENTOR I El. 5 lmmrrrzamsflmsm Ah'ORNEY U N I TED HARRY, FLOYD STILLSON, F W LIA SB ONT RIO, C N DA.

TELEPHONE "ATTACHMENT, 7

Application 'filed March 23, 1823, Serial No 627, 2.- RQHGWMIMMCI). 3091925 To alleuho'm it may concern:

Beit-known that I, HARRY FLOYD STILL- SON,- a citizen of Dominion-of Canada andresident ofWVilliamsburgh, in the county of Dundas and Provinceof Ontario Dominion of ca'nada have invented certain new 'and useful Improvements in Telephone Attachi ments of which the following is a specification.

This invention has relation to certain new and useful improvements in telephone construction; andhas for its primary object the provision of an attachment which may be-readily substituted on certai-n'types of telephones for the ordinary crank employed at the present time for ringing up other parties included in the system.

Another object of the invention resides in the provision of a-tele'phone attachment of the character stated,' which" will be of simpleconstruction and operation as well as highly efficient inuse, and which may be operated by simply forcing inwardly the operating rod projecting from the telephone box or casing.

Another object of the invention resides in the provision ofa telephone attachment of the characterstated'inwvhich the operating rod will have a longitudinal movement for limited distances to cause rotary movement of th rotatable shaft operating the ringing or calling up mechanism' within the telephone box or casing, such operation being caused as the operating rod 'is moved longitudinally in one direction without rotation of theoperating rod; the operating rod being permitted freerotation when returning to normal position without affecting the rotatable shaft.

The invention has for a further object the provision'of a telephone attachment of the character stated which will' be constructed in such a manner that either a long ring'orv p fthje ring given to the other party on the me;

With the foregoing and other objects in viewas will appear as the descriptionprd ceeds, the invention consists in the novel construction; combination. and arrangement of co-operating elements" as hereinafter more specifically set forth, claimed and shown-in the accompanying-drawings forming a part of the present application, in which:

Fig. 1 is an elevation of the attachment in-use, a -portion of the telephone box or casing-being included in this view.

Fig. 2 is-an elevation at; right angles to Fig. 1.

Fig.3 is a vertical section substantially on the planeof line 3-3 of Fig. 1, looking in the direction indicated by the arrows;

Fig. 4c is a transverse section substantially on the plane of line 44 of Fig.3, looking in the, direction indicated by the arrows.

Fig. 5 is a. detailedsection -substantially on the plane of line 55of Fig. 2, looking in the direction indicated by-the arrows.

Fig. 6 is an enlarged detailed section substantially on the plane of line 6-6 of Fig. 3, looking in the direction, indicated by the arrows.

Referring more in detail to the drawings in which similar reference characters desig nate corresponding parts throughout the several views it will be noted that an, operating rod 10 issubstituted for the crank usually employed on the telephone included in the systems whichprovide for each party ringing up or. calling the other party desired in the same system. I

As shown clearly in Figs; 2,3 and i, the operating rod 10 has spiralthreads 1 1;arranged thereon and working in spiral grooves 12 formed in a sleeve 13 which has a solid inner end threaded in the coupling sleeve=l4; which also receives the threaded end-15 of the rotatable shaft 16 forming a part'of the ringing or calling up mechanism within the telephone box or casing 1'7. l't'is to be noted that the coupling sleeve 14 and thesleeve 13 take the place of the crank or handle heretofore employed. It will also be apparent by referring ;to-Fig.; 3, that the sleeve 13 extends through the opening 18 in the telephone box or casing 17 from which the crank or handlehasbeen-removed. An annular flange 19 is extended radially from the outer end of the sleeve 13 and serves as a bearing member having continuous ball races in its under face to receive the bearing balls 21 positionedbetween the flange 19 and the out-turned flange 22 of the supporting and sleeve enclosing member 23.

This member 23 is in the form of a tube extending into the opening 18 of the telephone box or casing 17. A bearing enclosing cap 24 is engaged over the flange 19 and threaded or otherwise secured onto the flange 22, as shown clearly in Fig. 3. It will also be seen from this view that the cap 24: has a central opening 25 through which'the operating rod 10 works, as will be later clearly understood. 7 y

In order to secure the member 23 in position, an annular flange or plate 26 is formed thereon and secured to the outer face of the telephone box or casing 17 by suitable securing members 27 An-arm 28 is extended from the flange or plate 26 and parallel with the oscillating rod 10. A pair 'of comparatively long and comparatively short slots 29 and 30, respectively, are extended longitudinally in the outer portion of the arm 28 and connected at their outer ends by the cross slot 31, as shown in Fig. 5. The purpose 'of the slots 29, 30 and 31 will presently appear.

The operating rod 10 has a head 32 mounted on its outer end with a finger 33 extended laterally therefrom and working in the slots 29, 30 and 31 of the arm 28. A ratchet wheel 34 is mounted on the end of the operating rod 10, within the head 32 and has engaged therewith the pawl 35 which is pivotally mounted in the head 32 and resiliently retained in operative position. It will, therefore, be seen that the operating rod 10' will be retained against rotation when forced inwardly, so as to compel rotation of the sleeve 13, the coupling sleeve 14 and the rotatable shaft 16 operating the'ringing or calling up mechanism within the telephone box or casing 17. The operating rod 10 will be permitted to rotate freely as it is returned to its outermost or normal position. A helical spring 36 is extended around the outer portion of the operating rod 10 with one end of the spring 36 bearing against the outer face of the bearing cap 241- while its other end bears against the collar 37 extended around the operating rod 10 and secured on the end of the head 32 to prevent the operating rod 10 from working out of said head 32. The spring 36 serves to return the operating rod 10 and also the head 32 to normal or unoperated position after each operation and resiliently retain these parts against movement with the finger 33 located in the cross slot 31, as shown in Figs. 1, 3 and 5.

It is believed the complete construction and operation may now be apparent from the foregoing paragraphs taken in connec' tion with the accompanying drawings without further detailed description. It may be briefly stated, however, that when it is desired to give a long ring, the head 32 is turned to bring the finger 33 opposite the long shot 29 and the head 32 is then pressed in, forcing the operating rod 10 inwardly to compel rotation of the sleeve 13 and the parts connected therewith, thus giving a long ring of the ringing or calling-up mechanism of the telephone. As soon as the head 32 and operating rod 10 have been forced in and released, the spring 36 will serve to ordinarily return them to normal position. If a short ring is to be given, the head 32 must be turned in the opposite direction to present the finger 33 to the end of the short slot 30 of the arm 28. Then, by forcing in the head 32 and operating rod 10 and releasing them, a short ring will be given and the released operative parts of' the attachment returned to their normal positions. It is to be understood that-either the long ring or the short ring may be repeated any numher of times desired and owing to the construction and operation of the parts of the device, these rings of uniform length or duration are issued. It is also to be understood that the complete device may be read ily substituted for the crank employed on rural telephones and the like without any alteration in the arrangement and operation of the parts of the telephone.

While the preferred embodiment of the invention has been disclosed, it is to be understood that minor changes in the details of construction, combination and arrange ment of co-operating elements may be resorted to within the scope of what is claimed without departing from the spirit of the invention.

l/Vhat I claim as new is:

An attachment for a telephone including the combination with the telephone box and the rotatable shaft of the calling up mechanism; of a member mounted onsaid telephone box and extended into the same opposite the rotatable shaft; a guide arm carried by said member and provided with connected long and short slots; a sleeve operable within said member and having a hearing disc; said sleeve having spiral grooves therein; the first mentioned member having 7 a bearing disc opposite to the first mentioned bearing disc; bearing balls operable between said discs; a cap for said discs; an operating rod having threads working in said grooves to rotate said sleeves and the rotatable shaft of the calling up mechanism when the operating shaft is moved in one direction within the sleeve; a head for said operating rod; means within said head for preventing rotation of said operating rod when moved longitudinally to rotate said lit) sleeve; means for resiliently retaining said head and said operating rod in extended unoperated position; and a guide finger extended from said head and Working in said slots of the guide arm for guiding said head and said operating rod and limiting movement thereof to determine the length of the ring given by operation of the rotatable shaft of the calling up mechanism and the sleeve connected to said rotatable shaft.

In testimony whereof, I affix my signature.

HARRY FLOYD STILLSON. 

